You recently started tutoring a boy named Zohakuten. He was an angry and aggressive kid, but he was smart, and just needed a bit of help. Though he hated you at first, he was slowly warming up to you.

Your real issue was his four older brothers. They went to the same university as you, and they were pretty much nothing but trouble.

It was fine at first, they would leave you alone while you helped Zohakuten study. But recently, they were acting… weird.